CN100565661C - Make the driving circuit and the method for picture horizontally rolling, and use its electronic installation - Google Patents
Make the driving circuit and the method for picture horizontally rolling, and use its electronic installation Download PDFInfo
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- CN100565661C CN100565661C CNB200610058006XA CN200610058006A CN100565661C CN 100565661 C CN100565661 C CN 100565661C CN B200610058006X A CNB200610058006X A CN B200610058006XA CN 200610058006 A CN200610058006 A CN 200610058006A CN 100565661 C CN100565661 C CN 100565661C
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Abstract
The invention provides the driving circuit and the method for picture horizontally rolling, and use its electronic installation.Channel data can reach the distance and the frequency of required picture horizontally rolling in the interchannel translation.Channel data behind the scrolling (translation) can be backfilled to storer.Channel data after storer will upgrade is sent, and does not need little processing to recomputate channel data.By channel data translation and backing store mechanism, can reach the purpose of picture image horizontal scrolling.
Description
Technical field
The present invention relates to a kind of driving circuit and method that makes picture horizontally rolling, and use the electronic installation of this driving circuit.The present invention be more particularly directed to a kind of utilization data backfill after interchannel translation data and translation (write back) to storer, make the driving circuit and the method for picture horizontally rolling, and use the electronic installation of this driving circuit.
Background technology
Electronic installation, such as, mobile phone is played an important role in the modern life.In some cases, under standby picture or battery saving mode, the situation that picture needs horizontal scrolling may appear.
In the driving circuit of existing mobile phone, in the time will carrying out the horizontal scrolling of picture, be to realize mostly by microprocessor.Microprocessor can constantly send data to the mobile phone internal storage with the channel data in the updated stored device.Channel data after then storer will upgrade is again delivered to the driving circuit of rear end, makes driving circuit constantly change channel data, reaches the effect of picture horizontally rolling.
Reach the picture horizontally rolling effect and can cause microprocessor to be under the mode of operation always but utilize microprocessor constantly to send data, will increase mobile phone power consumption, not satisfactory.If do not carry out picture horizontally rolling, a cover low circuit cost and the low controlling mechanism of controlling complexity need be arranged then but do not utilize microprocessor constantly to send data.
Therefore, the invention provides a kind of driving circuit and method that circuit area gets final product simple and easy control that increase slightly, and use its electronic installation, it does not utilize microprocessor constantly to send data and realizes picture horizontally rolling.
Summary of the invention
One of purpose of the present invention provides a kind of driving circuit and method, and uses its electronic installation, and the function of its picture rolling is not constantly to send data by microprocessor to realize.
Another object of the present invention provides a kind of driving circuit and method, and uses its electronic installation, and when carrying out picture rolling, the data alternative of storer switches to different passages, to reach the distance and the frequency of required picture rolling.
Another purpose of the present invention provides a kind of driving circuit and method, and uses its electronic installation, when carrying out picture rolling, scrolling (translation) back data can be backfilled to storer, to reduce the complexity of control.
For reaching above-mentioned and other purposes, the present invention proposes a kind of driving circuit and the electronic installation of using it that makes picture horizontally rolling.Electronic installation comprises microprocessor, storer, memory buffer, driving circuit and display device.Memory buffer receives also each buffered data of each passage that output storage is exported.Control module in the driving circuit is sent backfill signal, horizontal scrolling enabling signal and is selected signal; In the time will carrying out picture horizontally rolling, backfill signal and horizontal scrolling enabling signal can be triggered.When not needing to carry out picture horizontally rolling, each buffered data of each passage of data switching blocks bypass in the driving circuit, and be sent to source electrode drive circuit to drive display device.In the time will carrying out picture horizontally rolling, the data switching blocks is carried out the data translation according to this selection signal to each buffered data of each passage, and is sent to source electrode drive circuit to drive display device.Buffered data is backfilled to this storer after the translation of each passage that the data backfill unit in the driving circuit is exported according to this backfill signal and with this data switching blocks.
The data switching blocks comprises: multiplexer, receive the pairing buffered data of other passages, and this multiplexer is exported in the pairing buffered data of other passages one according to this selection signal; Trigger according to this backfill signal that is triggered, is output into this output signal of this multiplexer buffered data and its inversion signal after this translation of each passage; The plural number phase inverter is strengthened the driving force of buffered data after this translation of each passage; And switch, in response to this horizontal scrolling enabling signal, in the time will carrying out picture horizontally rolling, buffered data was to this source electrode drive circuit after this switch conducted this translation of each passage; When not carrying out picture horizontally rolling, this switch conducts each buffered data of each passage to this source electrode drive circuit.Two switch elements of data backfill unit by using with this translation of each passage after buffered data and its inversion signal be backfilled to this storer.
For achieving the above object, the present invention also proposes a kind of picture horizontally rolling method of electronic installation.Each channel data of each passage of initial calculation produces backfill signal, horizontal scrolling signal and selects signal.In the time will carrying out picture horizontally rolling, trigger backfill signal and horizontal scrolling signal, according to this selection signal each buffered data of each passage is carried out the data translation, receive the pairing buffered data of each passage, and select and export one and inversion signal in the pairing buffered data of each passage according to this selection signal and this backfill signal of being triggered, show translation after data on display device.The storer that buffered data after the translation of each passage is backfilled to electronic installation is with the corresponding data in the updated stored device.If when not carrying out picture horizontally rolling, each buffered data of direct each passage of bypass.Each buffered data of buffered data after each passage translation or each passage is shown on the display device.This method is also strengthened the driving force of buffered data after this translation of each passage.
Therefore the present invention under the situation of not utilizing microprocessor, reaches the effect of picture horizontally rolling because of adopting said structure with the low circuit cost and the framework of low control complexity.
State with other purposes, feature and advantage and can become apparent on the present invention for allowing, preferred embodiment cited below particularly, and conjunction with figs. are described in detail below.
Description of drawings
Fig. 1 shows the circuit block diagram of mobile phone according to an embodiment of the invention.
The circuit block diagram of the data switching blocks of Fig. 2 displayed map 1.
The circuit block diagram of the data backfill unit of Fig. 3 displayed map 1.
Fig. 4 demonstrates mobile phone 100 according to the embodiment of the invention at the synoptic diagram that carries out picture horizontally rolling.
The main element description of symbols
100: mobile phone
105: microprocessor
110: storer
120: memory buffer
130: driving circuit
140: the data switching blocks
150: source electrode drive circuit
160: control module
170: data backfill unit
180: screen
210: multiplexer
220: trigger
230～260: phase inverter
270: switch
310,320: switching transistor
410: pattern
Embodiment
The present invention's embodiment provides a kind of driving circuit and method that realizes picture horizontally rolling, and uses its mobile phone or electronic installation.In this embodiment, channel data can reach the distance and the frequency of required picture horizontally rolling in the interchannel translation.Because the image of scrolling is continuous, this embodiment also considers backing store mechanism, and the channel data behind then each scrolling (translation) can be backfilled to storer.Storer can directly be exported the channel data after the renewal, and does not need microprocessor to calculate channel data after the translation once again.By channel data translation and backing store mechanism, can reach the purpose of picture image horizontal scrolling.When mobile phone enters battery saving mode or standby mode, pattern that some move horizontally may occur on its screen such as being the opportunity of carrying out horizontal scrolling.This embodiment can carry out translation to the corresponding video data of this pattern on the picture, to reach the effect of picture horizontally rolling.
Fig. 1 shows block scheme according to an embodiment of the invention.Other irrelevant parts note that following description is to focus on how present embodiment carries out picture horizontally rolling, so will skip over.As shown in Figure 1, mobile phone 100 comprises: microprocessor 105, storer 110, memory buffer 120, driving circuit 130 and screen 180.Driving circuit 130 comprises data switching blocks 140, source electrode drive circuit 150 (source driver), control module 160 and data backfill (write back) unit 170.
The Src Chan data that memory buffer 120 buffer memorys are sent by storer 110, and send the data switching blocks 140 of buffered data D_1～D_N to the driving circuit 130 of rear end concurrently.In the present embodiment, the data length of buffered data D_1～D_N all is one.Be convenient and explain that present embodiment is considered as foremost data with buffered data D_1, and buffered data D_N is considered as the data of rearmost end.
The multiplexer control signal S that 140 meetings of data switching blocks are sent according to control module 160, backfill signal WB and horizontal scrolling enabling signal HSEN determine whether and need carry out data translation or direct bypass buffered data D_1～D_N (also can be described as the Src Chan data) to buffered data D_1～D_N, and send channel data CH_1～CH_N.The circuit structure of data switching blocks 140 can be understood with reference to Fig. 2 with operation.
Source electrode drive circuit 150 receives channel data CH_1～CH_N of being sent by data switching blocks 140 (can be buffered data after the translation or the buffered data identical with the Src Chan data), and it is shown on the screen 180.At this, the structure of limits source driving circuit 150 not is as long as can realize the function that present embodiment is required.
After this raw data of data switching blocks 140 translations, for lowering the complexity of control, data backfill unit 170 can be backfilled to storer 110 with data after the translation, with the corresponding data in the updated stored device 110.When screen 180 when showing next picture, if still need picture horizontally rolling, then 110 need of storer are sent the data after the renewal, are decided the distance and the frequency of horizontal scrolling again by driving circuit 130.
From Fig. 1 and as can be known above-mentioned, in the present embodiment, microprocessor 105 can be passed to storer 110 with initial channel data earlier.Storer 110 is passed to memory buffer 120 with these initial channel data again, driving circuit 130 according to the buffered data of memory buffer 120 to be shown on the screen 180.Afterwards, when needs carry out picture horizontally rolling, do not need little processing 105 treatment channel data once more, but decide the translation distance of channel data by control module 160, and the channel data after the translation is sent to source electrode drive circuit 150, to be shown on the screen 180.Simultaneously, data backfill unit 170 is backfilled to storer 110 with the channel data after the translation, with the corresponding data in the updated stored device 110.Repeat above-mentioned these operations, can constantly handle and send under the situation of channel data by microprocessor 105 not needing, finish picture horizontally rolling.
Please refer to the data switching blocks 140 that Fig. 2 understands Fig. 1 below and how to carry out the data translation.The circuit block diagram of the data switching blocks 140 of Fig. 2 displayed map 1.Note that and be to simplify accompanying drawing, Fig. 2 only demonstrate be applied to passage K (K between 1 and N between positive integer) situation.Data switching blocks 140 comprises multiplexer 210 at least, trigger 220, phase inverter 230～260 and switch 270.Multiplexer 210, trigger 220 and phase inverter 230～260 are used to determine the distance of channel data translation, switch 270 then be used for decision to select after the translation channel data or not the translation channel data export source electrode drive circuit 160 to.
The data input pin D of trigger 220 receives the output signal of multiplexer 210, and its clock pulse input terminal CK then receives the backfill signal WB that is exported by control module 160.When carrying out horizontal scrolling, because want log-on data backfill mechanism, so backfill signal WB can be triggered.Otherwise when not carrying out horizontal scrolling, backfill signal WB can not be triggered.
Two output signals of trigger 220 can be undertaken anti-phase by phase inverter 230/240 and 250/260 respectively.Phase inverter 230/240 and 250/260 is as buffer circuit, is used to strengthen the driving force of signal.So phase inverter 230～260 is optionally. Phase inverter 240 and 260 is output signal Q_K and Q_KB respectively, output signal Q_K representative channel data after the translation of passage K, and Q_KB then is the inversion signal of Q_K.
By the framework of Fig. 2, in the time will carrying out horizontal scrolling, data switching blocks 140 can determine the horizontal translation distance of channel data, and data after the translation are sent to source electrode drive circuit 150 as channel data CK_1～CH_N, to be shown on the screen 180.If when not carrying out horizontal scrolling, data switching blocks 140 can will be directly inputted into source electrode drive circuit 150 without the buffered data D_1～D_N of translation, to be shown on the screen 180.
When carrying out the moving horizontally of channel data (just with channel data in the interchannel translation time), the present invention utilizes data backfill mechanism further to reduce the complexity of controlling.In the present embodiment, data backfill unit 170 is backfilled to storer 110 with data after the translation.The circuit block diagram of the data backfill unit 170 of Fig. 3 displayed map 1.
As shown in Figure 3, data backfill unit 170 comprises switching transistor 310 and 320.The source electrode of switching transistor 310 is connected to signal Q_K after the translation, and its grid is connected to backfill signal WB, and its source electrode then is connected to the bit line BLL_K of storer 110.The source electrode of switching transistor 320 is connected to signal Q_KB, and its grid is connected to backfill signal WB, and its source electrode then is connected to the bit line BLL_KB of storer 110.When carrying out horizontal scrolling, backfill signal WB can be triggered, thereby actuating switch transistor 310 and 320.By the conducting of switching transistor 310 and 320, signal Q_K and Q_KB can write to the bit line BLL_K and the BLL_KB of storer 110.Certainly, in the time of carrying out the data backfill, the word line of storer 110 be opened.So, can finish the operation that data after the translation are backfilled to storer 110.
In Fig. 1, bit line BLL comprises N bit lines BLL_1～BLL_N, and bit line BLLB comprises N bit lines BLL_1B～BLL_NB.
Fig. 4 demonstrates mobile phone 100 according to the embodiment of the invention at the synoptic diagram that carries out picture horizontally rolling.As described above, when mobile phone 100 entered standby mode or battery saving mode, the situation that left and right horizontal moves may appear in the pattern 410 on the screen 180.When the needs picture horizontally rolling, 105 of microprocessors need to send initial channel data to storer 110.Afterwards, can reach the effect of picture horizontally rolling, send the video data of each picture to storer 110 always and need not microprocessor 105 by the framework of Fig. 1～Fig. 3.
In the above-described embodiments, moving horizontally is that effect to be caused after the channel data translation defines.
For simplifying accompanying drawing, Fig. 1～Fig. 3 only demonstrates the situation that a passage includes only a channel data.How the person of ordinary skill in the field ought make to be fit to Fig. 1～Fig. 3 into situation that a passage comprises a plurality of channel datas as can be known.Such as, each bar passage corresponds to a plurality of elements 210～270, and the output set with above-mentioned these switches 270 becomes a required channel data of passage to get final product again.
In Fig. 2, switch 270 also can omit, only need to export output signal Q_K to source electrode drive circuit 150 as output signal CH_K, horizontal scrolling enabling signal HSEN incorporates multiplexer control signal S_K[2:0 into] in, that is, become S_K[3:0], multiplexer 210 increases connection buffered data D_K, and by multiplexer control signal S_K[3:0] select to get final product.
Embodiments of the present invention are not limited by the foregoing description certainly.Such as, the data choice mechanism of the foregoing description is to utilize D flip-flop to add that multiplexer realizes selecting desired datas from a plurality of data.The data handover mechanism also can utilize many-to-one switch or a plurality of trigger or its combination, and the same can the realization selected desired data from a plurality of data.Therefore, D flip-flop can be added that also multiplexer or its equivalent electrical circuit are referred to as " selected cell ".
In addition, switch 270 in the data switching blocks also can utilize multiplexer or trigger or PMOS (P-channel Metal-Oxide Semiconductor, P-passage metal-oxide-semiconductor (MOS)) transistor or NMOS (N-channel Metal-Oxide Semiconductor, N-passage metal-oxide-semiconductor (MOS)) transistor or transmission grid or logic gate (as AND grid and OR grid) or its make up and realize similar function, export as long as can realize selecting one from data D_K and Q_K.
In addition, when wanting implementation data backfill when mechanism, except utilizing nmos pass transistor, also can utilize to wait data Q_K and Q_KB are backfilled to storer as trigger, transmission grid, PMOS transistor or its combination.
In the above-described embodiments, all carrying out horizontal scrolling (translation distance that also is each channel data is all identical) with whole image is that example is done explanation.But the person of ordinary skill in the field sends the different data switching blocks 140 that control signal to by control module 160 as can be known, can make that the translation distance of each channel data depends on the circumstances (translation distance that also is each channel data may not be identical).Thus, can realize the part pattern horizontal scrolling on the screen 180, but part the pattern horizontal scrolling or the effect of scrolling not fully hardly.
The present invention does not limit yet can only be applied to mobile phone, and the present invention also can be applicable to such as on the PDA hand-held communication products such as (personal digital assistants).
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any person of ordinary skill in the field; without departing from the spirit and scope of the invention; when can doing a little change and improvement, so protection scope of the present invention is as the criterion when looking the claim person of defining.
Claims (14)
1. driving circuit, be applicable to electronic installation, it is characterized in that this electronic installation also comprises storer, memory buffer and display device, this memory buffer receives the data of this storer with each buffered data as each passage, this driving circuit carries out picture horizontally rolling to this display device, and this driving circuit comprises:
Control module is sent the backfill signal and is selected signal, and in the time will carrying out picture horizontally rolling, this backfill signal can be triggered;
The data switching blocks, receive each buffered data that this memory buffer is exported corresponding to each passage, when not carrying out picture horizontally rolling, each buffered data of this each passage of data switching blocks bypass, in the time will carrying out picture horizontally rolling, this data switching blocks is carried out data translation and output according to this selection signal to each buffered data of each passage;
Source electrode drive circuit receives buffered data after the translation of each buffered data of each passage of this data switching blocks institute bypass or each passage of being exported, to drive this display device; And
Data backfill unit, in the time will carrying out picture horizontally rolling, buffered data is backfilled to this storer after the translation of each passage that this data backfill unit is exported according to this backfill signal and with this data switching blocks.
2. driving circuit according to claim 1 is characterized in that this control module also exports the horizontal scrolling enabling signal, and in the time will carrying out picture horizontally rolling, this horizontal scrolling enabling signal can be triggered.
3. driving circuit according to claim 2 is characterized in that this data switching blocks comprises:
Selected cell, be connected to this memory buffer, receive the pairing buffered data of each passage, this selected cell is selected in the pairing buffered data of each passage one according to this selection signal and this backfill signal, with buffered data and its inversion signal after this translation that is output into each passage.
4. driving circuit according to claim 3 is characterized in that this data switching blocks also comprises the plural phase inverter that is connected to this selected cell, with the driving force of buffered data after this translation of strengthening each passage.
5. driving circuit according to claim 3, it is characterized in that this data switching blocks also comprises switch, receive each buffered data of buffered data and each passage after this translation of each passage, in the time will carrying out picture horizontally rolling, buffered data is to this source electrode drive circuit this switch conducts this translation of each passage according to this horizontal scrolling enabling signal that is triggered after; When not carrying out picture horizontally rolling, this switch conducts each buffered data of each passage to this source electrode drive circuit according to this horizontal scrolling enabling signal that is not triggered.
6. driving circuit according to claim 5 is characterized in that this data backfill unit comprises:
First switch element is backfilled to this storer according to this backfill signal that is triggered with buffered data after this translation of each passage; And
The second switch unit is according to this backfill signal that is triggered and this inversion signal of buffered data after this translation of each passage is backfilled to this storer.
7. electronic installation that can carry out picture horizontally rolling is characterized in that comprising:
Microprocessor calculates and sends each channel data of each passage;
Storer is connected in this microprocessor, receives and export each channel data of each passage that this microprocessor sends;
Memory buffer is connected in this storer, receives and export each channel data of each passage that this storer sends;
Driving circuit is connected in this memory buffer, produces the backfill signal and selects signal; In the time will carrying out picture horizontally rolling, this backfill signal can be triggered, and this driving circuit carries out exporting after the data translation according to this selection signal each buffered data to each passage, and buffered data after the translation of each passage is backfilled to this storer; When not carrying out picture horizontally rolling, each buffered data of this each passage of driving circuit bypass; And
Display device is connected in this driving circuit, drives according to each buffered data of buffered data or each passage after the translation of each passage.
8. electronic installation according to claim 7 is characterized in that this driving circuit comprises:
Control module is sent this backfill signal, this selection signal and horizontal scrolling enabling signal, and in the time will carrying out picture horizontally rolling, this horizontal scrolling enabling signal can be triggered;
The data switching blocks, be connected in this memory buffer and this control module, receive each buffered data that this memory buffer is exported corresponding to each passage, when not carrying out picture horizontally rolling, each buffered data of this each passage of data switching blocks bypass, in the time will carrying out picture horizontally rolling, this data switching blocks carries out exporting after the data translation according to this selection signal each buffered data to each passage;
Source electrode drive circuit receives buffered data after the translation of each buffered data of each passage of this data switching blocks institute bypass or each passage of being exported, to drive this display device; And
Data backfill unit, in the time will carrying out picture horizontally rolling, buffered data is backfilled to this storer after the translation of each passage that this data backfill unit is exported according to this backfill signal and with this data switching blocks.
9. electronic installation according to claim 8 is characterized in that this data switching blocks comprises:
Selected cell, be connected to this memory buffer, receive the pairing buffered data of each passage, this selected cell is selected in the pairing buffered data of each passage one according to this selection signal and this backfill signal, with buffered data and its inversion signal after this translation that is output into each passage.
10. electronic installation according to claim 9 is characterized in that this data switching blocks also comprises plural phase inverter, with the driving force of buffered data after this translation of strengthening each passage.
11. electronic installation according to claim 9, it is characterized in that this data switching blocks also comprises switch, receive each buffered data of buffered data and each passage after this translation of each passage, in the time will carrying out picture horizontally rolling, buffered data is to this source electrode drive circuit this switch conducts this translation of each passage according to this horizontal scrolling enabling signal that is triggered after, when not carrying out picture horizontally rolling, this switch conducts each buffered data of each passage to this source electrode drive circuit according to this horizontal scrolling enabling signal that is not triggered.
12. electronic installation according to claim 9 is characterized in that this data backfill unit comprises:
First switch element is backfilled to this storer according to this backfill signal that is triggered with buffered data after this translation of each passage; And
The second switch unit is according to this backfill signal that is triggered and this inversion signal of buffered data after this translation of each passage is backfilled to this storer.
13. a picture horizontally rolling method is applicable to the electronic installation of tool display device and storer to it is characterized in that this method comprises the following steps:
A) each channel data of each passage of initial calculation;
B) produce backfill signal, horizontal scrolling signal and selection signal;
C) in the time will carrying out picture horizontally rolling, trigger this backfill signal and this horizontal scrolling signal, according to this selection signal each buffered data of each passage is carried out the data translation, receive the pairing buffered data of each passage, and select and export one and inversion signal in the pairing buffered data of each passage according to this selection signal and this backfill signal of being triggered, and according to this backfill signal with the translation of each passage after buffered data be backfilled to this storer, to upgrade the corresponding data in this storer, when not carrying out picture horizontally rolling, each buffered data of each passage of bypass; And
D) each buffered data with the buffered data after each passage translation or each passage is shown on this display device.
14. method according to claim 13 is characterized in that also comprising step:
E) strengthen the driving force of buffered data after this translation of each passage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610058006XA CN100565661C (en) | 2006-02-24 | 2006-02-24 | Make the driving circuit and the method for picture horizontally rolling, and use its electronic installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610058006XA CN100565661C (en) | 2006-02-24 | 2006-02-24 | Make the driving circuit and the method for picture horizontally rolling, and use its electronic installation |
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| Publication Number | Publication Date |
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| CN101025907A CN101025907A (en) | 2007-08-29 |
| CN100565661C true CN100565661C (en) | 2009-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB200610058006XA Expired - Fee Related CN100565661C (en) | 2006-02-24 | 2006-02-24 | Make the driving circuit and the method for picture horizontally rolling, and use its electronic installation |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922238A (en) * | 1985-05-30 | 1990-05-01 | International Business Machines Corporation | Method and system for smooth scrolling of a displayed image on a display screen |
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2006
- 2006-02-24 CN CNB200610058006XA patent/CN100565661C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922238A (en) * | 1985-05-30 | 1990-05-01 | International Business Machines Corporation | Method and system for smooth scrolling of a displayed image on a display screen |
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| CN101025907A (en) | 2007-08-29 |
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Granted publication date: 20091202 Termination date: 20180224 |